Superabrasive L20GEB Owner's manual

Brand
Superabrasive
Model
L20GEB
Type
Owner's manual
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
LAVINA ELITE L20GEB
User Manual
Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
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Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
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WARRANTY AND RETURNS
WARRANTY POLICY FOR LAVINA® GEB MACHINES
A warranty card must be submitted to Superabrasive within 30 days of purchase in order for the foregoing warranty to
apply.
You can either mail a hard copy of the warranty card or submit it electronically - see page 2.
Superabrasive warrants, from the time of delivery and receipt by the original customer, new and unused products sold
by Superabrasive or Superabrasive-appointed distributors or dealers. Goods shall be free from defects in materials and
workmanship. Superabrasive or a Superabrasive-appointed repair facility shall either replace or repair any defects in the
Goods resulting from faulty design, materials, or workmanship. Products repaired or replaced during the warranty period
shall be covered by the foregoing warranty for the remainder of the original warranty period, or ninety (90) days from date
of the repair or shipment of the replacement, whichever is longer. Spare parts for repair will be either new or equivalent
to new.
Warranty period shall be 2 years from the time of delivery and receipt by the original customer, or 600 operating hours
on the machine - whichever occurs first. Superabrasive will cover the shipping charges for the transportation of the
machine to Superabrasive (or an approved repair facility) and back to the customer (within the contiguous 48 United
States) in the event that the damage occurs and is reported within 200 operating hours. Shipping charges, if covered by
Superabrasive, must be agreed upon in advance and approved by Superabrasive. Thereafter, the customer will have to
cover the shipping charges to Superabrasive and back. Superabrasive will not warranty Goods after a period of 2 years
from the time of delivery and receipt by the original customer, or 600 operating hours on the machine - whichever occurs
first.
Superabrasive shall not be liable for any defects that are caused by circumstances that occur after the Goods have been
delivered and whilst the Goods are in the possession of the purchaser. Furthermore, the warranty does not include normal
wear and tear or deterioration. Wear parts are not warranted. Superabrasive is not liable for defects arising out of use of
non-OEM parts.
The Warranty is void if the purchaser has not followed the maintenance plan stipulated by the machine’s manual and
warranty card. The warranty is void if the purchaser repairs said Goods himself, or if repairs are conducted by a repair
facility that is not approved by Superabrasive. Superabrasive’s liability does not cover defects which are caused by faulty
maintenance, incorrect operation, faulty repair by the purchaser, or by alterations conducted without Superabrasive’s
prior written consent. The same applies to any alterations of the Goods or services performed by another party other
than Superabrasive, a Superabrasive-appointed distributor, or a Superabrasive-approved repair facility. The warranty is
not applicable on a defect that arises due to tools or parts that are not original to Superabrasive. Replaced defective parts
shall be placed at Superabrasive’s disposal and shall become property of Superabrasive. If such defective parts are
replaced
within the warranty period, the shipping charges will be covered by Superabrasive. In warranty complaint cases, when
no defects are found for which Superabrasive is liable, Superabrasive shall be entitled to compensation for the labor,
material cost, and shipping charges, incurred by Superabrasive as as a result of the complaint.
The warranty herein is non-transferable, and only applies to the original owner or purchaser of the machine.
RETURN POLICY FOR LAVINA® GEB MACHINES
The Lavina® ELITE machines may be returned, subject to the following terms:
In no case, a machine is to be returned to Superabrasive Inc. for credit or repair without prior authorization. Please contact
Superabrasive Inc. or your local distributor for an authorization and issuance of a return authorization number. This number
along with the serial number of the machine must be included on all packages and correspondence. Machines returned
without prior authorization will remain property of the sender and Superabrasive Inc. will not be responsible for them. No
machines will be credited after 90 days from the date of invoice.
All returns must be shipped freight prepaid. Returned machines may be exchanged for other equipment or parts of equal
dollar value. If machines are not exchanged, they are subject to a fifteen percent (15%) restocking fee.
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
Table of Contents
1. GENERAL INFORMATION ..................................................... 5
MANUFACTURER ........................................................................ 5
GENERAL DESCRIPTION ............................................................... 5
MACHINE CHARACTERISTICS ...................................................... 5
LAVINA® 20GEB MAIN DESIGN ................................................. 5
ENVIRONMENTAL CONDITIONS .................................................. 5
VACUUM CONNECTION .............................................................. 5
TECHNICAL DATA .................................................................. 6
2. SAFETY INSTRUCTIONS ............................................... 7
PREPARATION FOR WORK ......................................................... 7
PROTECTION DEVICES ................................................................ 7
ARREST FUNCTIONS ................................................................... 7
SAFE USE ..................................................................................... 7
FIRE SAFETY ................................................................................ 7
EMISSIONS .................................................................................. 7
HAZARD COMMUNICATION ...................................................... 7
LOCAL AGENCIES AND REGULATIONS ........................................ 8
AFTER WORK IS COMPLETED ..................................................... 9
THE WORK AREA ............................................................................. 9
PERSONAL PROTECTIVE EQUIPMENT (PPE) ............................... 9
TRANSPORTING CYLINDERS ..................................................... 10
3. HANDLING AND TRANSPORTATION .................................. 11
ADJUSTING THE HANDLE........................................................... 11
LIFTING THE MACHINE FROM WORKING TO TOOL
MOUNTING POSITION ......................................................... 12
LIFTING 12
STORAGE ................................................................................... 12
4. OPERATION ...................................................................... 13
PRELIMINARY CONTROLS ................................................................. 13
SA LPG CONTROLLER USER MANUAL ............................................ 13
SYSTEM COMPONENTS ................................................................... 13
OVERVIEW OF FEATURES ................................................................. 13
BUILT-IN FUEL LOCKOFF CONTROLLER ............................................... 13
EMISSIONS WARNINGS AND SHUTDOWN............................................ 13
BATTERY VOLTMETER ..................................................................... 13
ENGINE TACHOMETER .................................................................... 13
JOB TIMER.................................................................................... 13
SERVICE ALERTS ............................................................................ 14
MAIN MENU NAVIGATION AND USE ................................................. 14
MAIN MENU ................................................................................ 14
LED ALERTS & RESETTING SERVICE INTERVALS .................................... 15
SAFETY INFORMATION .................................................................... 15
WATER FLOW CONTROL SYSTEM .............................................. 16
ADJUSTING AND MOUNTING TOOLS ........................................ 17
VACUUM CONNECTION ............................................................ 17
CONTROL BOARD ...................................................................... 18
THE CONTROL BOARD .............................................................. 18
ELECTRONICS MODULE OF DIGITAL FUEL CONTROL SYSTEM . 19
STARTING THE MACHINE .......................................................... 20
OPERATING THE MACHINE ....................................................... 20
STOPPING THE MACHINE .......................................................... 20
5. TOOLS AND ACCESSORIES.................................................. 21
6. POPULAR TOOLS................................................................ 22
7. MAINTENANCE AND INSPECTION ..................................... 23
REMARK ..................................................................................23
MECHANICAL PARTS: ......................................................................23
CLEANING ..................................................................................23
CHECK HOURLY ..........................................................................23
CHECK DAILY ..............................................................................23
CHECK AND REPLACE AFTER THE FIRST 8 WORKING HOURS .....23
CHECK AND REPLACE AFTER THE FIRST 15 WORKING HOURS ...23
CHECK AND REPLACE EVERY 50 WORKING HOURS ....................24
CHECK AND REPLACE EVERY 200 WORKING HOURS ..................24
CHECK AND REPLACE EVERY 400 WORKING HOURS ..................24
VACUUM ...................................................................................24
WATER LEAKS ............................................................................24
MECHANICAL PARTS ..................................................................24
8. TROUBLESHOOTING .......................................................... 25
8.1 ENGINE ................................................................................25
8.2 CHECKING AND CHANGING OIL ...........................................26
8.5 DISMOUNTING/MOUNTING THE ENGINE............................29
8.6 REPLACING THE CLUTCH ......................................................30
8.7 DISMOUNTING TOOL HOLDER TO CHANGING V-RINGS AND
FELT-RINGS ................................................................................30
8.8 DISASSEMBLING AND MOUNTING TOOL HOLDER TO
CHANGE BUFFERS AND ELASTIC ELEMENT ................................31
8.9 CORRECTING DEFLECTION OF THE USED PLANETARY
CHAIN 32
8.10 MOUNTING NEW PLANETARY CHAIN ................................33
8.11 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND
PLANETARY TENSIONER.............................................................34
8.12 REPLACING PULLEY UNITS .................................................34
8.13 MOUNTING THE BELT ........................................................36
8.14 CHECKING THE TENSION OF THE BELT ...............................37
9. DISPOSAL .......................................................................... 37
10. MANUFACTURER’S CONTACTS ........................................ 37
12. SPARE PARTS ............................................................ 40
ASSEMBLY AND PARTS SPECIFICATIONS ..................................40
12.1. GENERAL PARTS ........................................................40
12.2 BUMPER .........................................................................40
12.4 CONTROL BOARD .......................................................41
12.5. CONTROL BOARD WITH THROTTLE CABLE ........41
12.6 CARRIAGE .....................................................................42
12.7 CARRIAGE 2 ..................................................................43
12.8 CARRIAGE 3 ..................................................................43
12.9 WHEEL ASSEMBLY ..........................................................44
12.10 EXTERNAL WATER VALVE ......................................44
12.11 WATER TANK ...................................................................44
12.12 REGULATOR SET ......................................................44
12.13 ENGINE BASE PARTS ...............................................45
12.14 GUARD ASSEMBLY .........................................................45
12.16 BOTTOM COVER PARTS 1 .......................................46
12.17 PLANETARY DRIVE PARTS .....................................47
12.18 TOOL HOLDER PARTS ....................................................48
12.19 BOTTOM COVER PARTS 2 .......................................48
12.20 PULLEY UNITS ............................................................49
12.21 KAWASAKI FS481V ENGINE PARTS ......................50
12.22 DRIVING PULLEY UNIT PARTS ...............................50
12.23 ELECTRICAL SCHEMES WITH KAWASAKI ENGINE ...........51
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
1. GENERAL INFORMATION
This owner’s manual is intended for the operator of the Lavina® GEB machine, the servicing technician as well as for anyone
involved with operating or servicing the machine. We recommend that you read the instructions very carefully and follow them
strictly. The manual includes information about assembling, using, handling, adjusting and maintaining your Lavina® GEB floor
grinding and polishing machine.
MANUFACTURER
Superabrasive was founded in 1987, as a manufacturer of high quality diamond tools for
the stone and concrete industry. Today, Superabrasive is one of the world’s leading
companies in the production of diamond tools and floor grinding machinery. At
Superabrasive, we strive to deliver the very best solutions to our customers, and enable
them to work more efficiently.
GENERAL DESCRIPTION
The Lavina® GEB machine is intended for grinding, polishing and buffing concrete, marble,
granite, limestone and terrazzo surfaces with diamond tools. Additionally, the machine
could be used for grinding wood floor surfaces.
The Lavina® GEB machine is a three-disc machine, which can be used wet or dry.
For best results, use only tools manufactured or recommended by Superabrasive and its
distributors.
The Lavina® GEB machine is manufactured and fitted for the
above-mentioned applications only! Every other use may possess risks to the
persons involved.
MACHINE CHARACTERISTICS
The Lavina® GEB machine is made of two main component sections:
LAVINA® 20GEB MAIN DESIGN
The two main components are the carriage and main head.
The handle on the frame is adjustable in height and allows the operator to work in a
correct and safe posture.
The LED lights (Fig.1.1;Fig.1.2) enables the operator to work in darker areas.
Existing lighting system does not replace adequate
overhead lighting.
The propane tank is placed on a tank holder on the backside of the frame.
The control panel (fig.1.3) is positioned on top of the frame and contains
switching devices, which ensure the proper functioning of the engine, LPG supply
turning on/off of the electromagnetic connector/clutch.
The water tank is on the opposite side of the frame, so that the weight of the
water does not affect the operation of the machine. The frame weight, on the
other hand, is fully absorbed by the driving wheels.
The Engine Kawasaki FS481V with electric clutch is mounted on the base plate and it is
driving the three heads with a belt system.
The planetary motion derives from the main engine, driven by a simplex roller chain,
The self‐leveling Guard is designed to have contact with the surface. Anytime, no matter the height of the tool
used.
“Quickchange” tool holder is designed to hold the tools with “Quickchange”connection.
The “Foam” tool holder is designed to hold tools with Velcro connection. It is mounted on each of the three grinding
heads with a key lock (butterfly). The Velcro makes changing of tools fast and easy
ENVIRONMENTAL CONDITIONS
The temperature range for operating the Lavina® GEB machine outdoors is between 41°F and 86°F or 5°C and 30°C. Never use
the Lavina® GEB machine during rain or snow when working outdoors. When working indoors, always operate the machine in
well‐ ventilated areas.
VACUUM CONNECTION
A connection for a vacuum dust extractor is located on the carriage. The Lavina® GEB machine does not include a vacuum dust
extractor. The customer must purchase the vacuum dust extractor separately. The vacuum dust extractor must be adapted for
floor grinders and have a minimum air displacement of 310m3/h with a negative vacuum of 21 kPa.
Figure 1.3
Figure 1.1
Figure 1.2
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
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TECHNICAL DATA
VIBRATIONS
The vibrations of the machine are within the limits of directives and harmonized standards from the European Union when
the
Lavina® GEB is operated with the recommended tools and in normal conditions.
SONOROUS EMISSIONS
The sonorous emissions are within the limits of directives and harmonized standards from the European Union when the
Lavina® GEB is operated with the recommended tools and in normal conditions. However, as previously stated, the operator
must wear ear protectors.
LABEL DATA
The data on the label provides the correct Voltage and kW (needed for operational purposes);
Weight (needed for transportation purposes); production year and serial number (needed for maintenance purposes).
CUSTOMER SERVICE
For customer assistance and technical support call your local distributor or call Superabrasive Inc. at
1‐800‐987‐8403 or visit us at: www.superabrasive.com , where you can download a copy of this manual.
TECHNICAL DATA
Lavina® 20GEB
engine
Kawasaki FS481V
Capacity of engine
603cc
36.8cu.in
Power
13kW /3600 min
18 hp/3600 min
Tool holder rpm
610-1090 rpm
Direction of rotation
The heads have counter-clockwise / left rotation
Engine rpm
2000-3600 rpm
Working width
510 mm
20”
Tool holder diameter
3 x 225 mm
3 x 9”
Weight
292kg
645 lbs
Grinding pressure
Weights upward
126 kg
278 lbs
Grinding pressure
Weights downward
168 kg
371 lbs
Application
wet and dry
Vacuum hose port
Cam lock E250
Cam lock E250
or hose 2”
Water tank capacity
20 l
5.2 gal
Water feed
Peripheral
Capacity Propane tank
9kg
20lbs
Machine LxWxH
1709x557x1195 mm
67.3”x21,9”x47”
Packing crate LxWxH
1390x710x1400 mm
54.7”x28”5x55.1”
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
2. SAFETY INSTRUCTIONS
RECOMMENDED USE
The LAVINA® 20GEB machine is designed and
manufactured to grind and polish concrete, terrazzo and
natural stone floors. It can be used for renovations as well
as for polishing.
The machine is designed for dry or wet use. When using it
dry, use a vacuum of appropriate size. For more
information, please refer to the chapter on handling the
vacuum connection.
PROHIBITED USE
The machine MUST NOT be used:
For applications different from the ones stated in the
General Description chapter.
 In environments which:
- Possess risks of explosion
-Possess high concentration of powders or oil
substances in the air
- Possess risks of fire
- Feature inclement conditions.
- Possess electromagnetic radiation.
- In nursing homes, hospitals, day‐care centers, etc
- In areas where loose tiles or other objects are
preventing proper use of the machine.
- In rooms without proper ventilation
- In nursing homes, hospitals, day-care centers, etc
- In areas where loose tiles or other objects are
preventing proper use of the machine.
- In rooms without proper ventilation
PREPARATION FOR WORK
Make sure that:
The work area is closed so that no person unfamiliar
with operating the machine can enter the area
 The tool plate and tools are mounted on the
machine properly
 There are no missing parts of the machine
 The machine is in upright working position
 The protection devices are working properly.
PROTECTION DEVICES
 The machine is equipped with several protection
devices including the following:
 A protection skirt and a hood for protecting the
tool plates.
 These devices protect the operator and/or others
persons from potential injuries. Do not remove them. On
contrary, before using the machine, please ensure that
all
protection devices are mounted and function properly.
 The Envirogard Emissions Monitoring System
ARREST FUNCTIONS
 Functions of arresting of the machine are following:
- Switch to stop the engine
- Button to stop the grinding movement
- Close the propane tank
SAFE USE
The LAVINA® 20GEB is designed to reduce all risks
correlated with its use. However, it is not possible to fully
eliminate the risks of an accident with the machine.
Unskilled
or uninstructed operator may cause correlated residual
risks. Such risks are:
- Position Risks due to operator’s incorrect working
position
- Entanglement Risks due to wearing inappropriate
working clothes
- Training Risks due to lack of operational training
PROPANE SAFETY
Propane is a flammable gas whose vapors are heavier
than air. As is the case with gasoline, propane can explode if
the proper cautions are not heeded. Propane is odorized
with an agent having a distinct odor that is recognizable at
very low concentrations. This helps in identifying leaks, even
when they are small.
Awareness and basic safety precautions are required
when working with propane. As long as these precautions
are followed, risk is negligible. Ignorance, however, could
pose needless risk.
The two greatest hazards with propane powered floor
care machines are:
- Carbon Monoxide Poisoning: This is the most
frequently reported incident associated with propane
powered floor care machines and is caused by excessive
exhaust emissions. The symptoms are headache,
dizziness and nausea. A major cause involves engines
with poor preventive maintenance practices, usually
those with dirty air filters and machines operated in
confined areas without adequate ventilation. Another
cause may be substandard, inexpensive machines with
no emissions control technology and improperly
set carburetion.
- Overfilled Fuel Cylinders: Nearly all fire
relatedincidents reported result from bringing a
cylinder into
a building without first checking for overfill. This action
is dangerous, unwise, and unnecessary.
FIRE SAFETY
Be aware of the potential dangers of fire or
explosion when using propane, and take normal
fire‐safety precautions.
Fire: There is a possibility of fire from LPG vapor
leaking or venting from fuel cylinders or carburetion
equipment. Explosion: LPG vapor concentrated or
confined to a small, restricted space may explode or
ignite.
Propane may experience a BLEVE, a boiling liquid
expanding vapor explosion.
EMISSIONS
 All propane powered floor care machines produce
emissions. Most are harmless, but some are dangerous
and can be fatal. Carbon monoxide (CO) poses the
greatest risk, since
CO can be lethal within as little as 30 minutes exposure at
3,000 parts per million (ppm) concentration.
 Carbon monoxide is an invisible, odorless,
colorless gas created when fossil fuels (such as
gasoline, wood, coal, propane, oil and methane) burn
incompletely.
HAZARD COMMUNICATION
A Material Safety Data Sheet for propane shall be
posted in all buildings where propane will be used.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
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Because propane is odorized, it is easily detected at
levels of just a few parts per million, which is much
less than the exposure limit of 1000 parts per
million.
If you smell propane while operating a propane
floor care machine, do the following:
Stop the engine:
1. Pull the throttle to the stop position (if
present) or turn the key switch to the off
position.
2. Shut off the service valve on the propane cylinder.
3. Move the floor machine to a well‐ventilated area.
4. Remove the cylinder from the machine and
take it outside the building.
5. If the cylinder is leaking, contact a DOT
approved repair shop to determine the cause
of the leak and have the shop, not you, repair
it.
If a fire occurs while the machine is being
operated, do the following:
1. Stop the engine: pull the throttle to the stop
position
(if present) or turn the key switch to the off
position.
2. Shut off the service valve on the propane
cylinder if possible. Be careful not to be
burned.
3. Move the machine outside if possible. If not
possible,
move it to a well‐ventilated area away
from flammable materials.
4. Do not attempt to extinguish the flame
from a gas leak. If you do, the
gas will build up in the area and
could re‐ignite. Starve the fire by
shutting off the supply of gas.
5. HAVE THE MACHINE AND CYLINDER
INSPECTED BEFORE USING THEM
AGAIN
LOCAL AGENCIES AND REGULATIONS
NFPA
Operating a propane powered
floor care machine requires compliance with certain safety
regulations. The National Fire Protection Agency (NFPA)
Standard for Storage and Handling of LP Gas is the
appropriate authority for safe propane use. A copy of this
publication is available through the NPFA in Quincy, MA (1‐
800‐334‐3555).
Among its regulations, NFPA #58 requires that all personnel
employed in the handling of propane gas be trained in its
proper handling and operating procedures. It also requires
them to carry a written certification from their employer or
training supervisor to attest to such training. Although this
is directed mainly to those who fill and transport liquid
propane gas, Onyx Environmental Solutions recommends
that operators of propane powered floor care machines in
public places be trained and certified as well.
With regard to operation of propane powered floor care
equipment, even though NFPA 58 8‐4.5 says “these
machines shall be permitted to be used in buildings
frequented by the public, including the times when such
buildings are occupied by the public,” Onyx Environmental
Solutions suggests usage when occupancy of a given work
area is minimal.
CARB / EPA
The California Air Resource Board (CARB) and
Environmental Protection Agency (EPA) also set limits for
propane‐powered engines used outdoors, but CARB/EPA
approval does not signify that the engine is safe to use
indoors.
CGA
The Canadian Gas Association (CGA) has set a limit of
1500 ppm CO in exhaust flow.
OSHA
For propane powered machines used indoors, the
Occupational Health and Safety Administration (OSHA) has
established a limit of 50 ppm CO for 8‐hour time weighted
average (TWA) in ambient air and is considering a limit of
800 ppm CO in exhaust flow.
DOT
The Department of Transportation (DOT) has established
regulations regarding the safety of fuel cylinders including
the ones used on propane powered floor care machines.
Local Agencies
Local law enforcement agencies such as the local Fire
Marshall also rely on independent testing labs such as UL
and CGA before giving their approval of the use of some
equipment. These labs thoroughly test equipment and
submit their stamp of approval only after rigorous testing.
While not being required by all law enforcement agencies,
the stamp of approval by these agencies further assures the
operator that he or she is working with and around safe
equipment.
NOTE: In order to reduce all consequences of the above‐
mentioned risks, we advise that machine operators will
follow the instructions in the manual at all times.
RESIDUAL RISKS
During the normal operating and maintenance
cycles, the operator is exposed to few residual risks,
which cannot be eliminated due to the nature of the
operations.
BEFORE YOU BEGIN
Clear working area of any debris or objects.
 A first‐time operator must always read the manual
and pay attention to all safety
instructions.
 All propane connections and cables must be
inspected for potential damages.
 Perform general daily inspections of the machine and
inspect the machine before each use.
 Always inspect the safety devices:
 The tool protector must be working
 Mount the security disc when working with
Quickchange Pads.
 The machine must be clean
Never operate the machine in the rain!
 Confirm that there are no missing parts
especially after transportation, repair or
maintenance.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
9
 Before filling the water tank with water, make sure
the machine is not running and the main switch is
turned off.
 Before turning on the machine, make sure that the base
is
placed on the floor, the machine MUST NOT be in a
tilted position when starting
OPERATING MACHINE
When operating the Lavina® 20GEB, make
certain that there is no one, but you around the
machine.
 Never leave the machine unattended while working.
 The water hose must move freely and must be damage‐
free.
 Make sure the working surface is not too uneven. If
it is, it may damage the machine.
AFTER WORK IS COMPLETED
Clean the machine and its
surroundings properly
 Empty and clean the water tank
 Store the machine in a safe place
 Place the Propane bottle outside in designated storage
The Work Area
Prevent people or vehicles from entering the work
area.
Clear all hoses and cables from the work area.
Always check the floor for debris
PERSONAL PROTECTIVE EQUIPMENT
(PPE)
Always wear safety shoes when working with the
machine.
 Always wear ear protectors when working
with the machine.
 All personnel in the immediate work area must wear
safety glasses with side shields.
 Always wear safety gloves when changing the tools.
 Always wear clothes suitable for the work environment.
 Always wear Carbon Monoxide Indicator
badges as an extra precaution.
 The plastic indicator contains a colored indicator button
that darkens in the presence of Carbon Monoxide. The
relative darkness of the indicator button indicates the
level of CO in the ambient atmosphere. Most indicator
badges have a useful life of 30 days, depending on the
concentration of contaminants, humidity, and
temperature.
TESTING
There are a great number of instruments offered on the
market to test for toxic gases. Only those designed to
read carbon monoxide resulting from combustion
engines are considered acceptable for testing exhaust
emissions from propane powered floor machines.
Some instruments are used to read “ambient air” and
may
be damaged if used to take readings in the muffler or
tail pipe. Selecting the proper instrument is an
important part of meeting the testing requirements.
Generally speaking, units capable of reading in ppm,
(parts per million), at ranges from 0 to 1000 are
adequate for checking ambient air (air in the breathing
zone of the operator). Instruments capable of testing
carbon
monoxide in the exhaust should be able to read from 0
to
at least 2000 ppm and should be certified by
the manufacturer for that purpose.
Some instruments and systems used for these
purposes are:
1) AMBIENT AIR MONITORING
DRAGER Model 190: Manufactured by National
Drager.
SENSIDYNE gas sampling system with YB‐11038
Sensidyne dectector tubes
DRAGER gas sampling system with YB‐4620
Drager detective tubes
GAS‐TECH Model CO‐95
ENERAC POCKET 60: Manufactured by Energy
Efficiency System
2) ENGINE EXHUAST
ANALYZERS HORIBA
GAS ANALYZER
ENERAC 2000 COMBUSTION
ANALYZER ENERAC POCKET 60
3) DATA LOGGERS
INDUSTRIAL SCIENTIFIC CORP. MODEL STX‐70
CO MONITOR, Data‐Logger
BIOSYSTEMS INC. “TEXILOG” Data‐Logger
All instruments used for testing must be calibrated
at intervals recommended by the manufacturer. The
monitor, model number and date of calibration will
be recorded with all test results.
OPERATOR
The operator must know the machine’s
work environment.
Only one operator can work with the machine at a time.
The operator must be properly trained and well
instructed prior operating the machine.
The operator must understand all the instructions in
this manual.
The operator must understand and be able to
interpret all the drawings and designs in manual.
The operator must know all sanitation and
safety regulations pertaining to the operation
of
The operator must have floor grinding experience.
The operator must know what to do in case of
emergency.
The operator must have adequate technical
knowledge and preparation.
The operator is expected to operate their equipment
safely
and responsibly. They are responsible for the
proper handling and storage of propane cylinders,
identifying potential hazards associated with his
job and avoiding these hazards at all times.
PROPANE CYLINDERS
The Propane cylinders are constructed of either
aluminum or steel. We recommend aluminum
because it is lighter and guards against rusting. The
cylinder used on propane powered floor machines is
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
10
classified as a 4E240 cylinder. Its rated capacity is 20
lbs. and this designation refers to the model of the
cylinder. Actual propane capacity
achieved during filling can be less than, equal to, or
slightly more than 20 lbs. Use only UL, CTC/DOT listed
cylinders.
 The propane cylinder used on the floor machine is a
motor fuel cylinder as listed by the Department of
Transportation. Unlike the common 20‐lb propane
outdoor grill cylinders (which are not legal for use on
propane floor machines),
the motor fuel cylinder has a number of safety systems
designed into it to ensure your safety at all times.
 There are two types of 20 lb. motor fuel cylinders.
Liquid draw
Vapor draw
 The liquid draw cylinder is used on larger vehicles like
forklifts. These machines have special vaporizing
carburetors to allow the propane to change from a
liquid to a gas before being burned in the combustion
chamber.
 The vapor draw cylinder is used on small machines like
the propane powered floor care machines. The
vacuum generated by the engine draws up the
Propane gas vapor through the fuel system. The
propane powered floor care machine does not have an
evaporating system and will freeze up if liquid propane
is introduced to it. It is necessary that special attention
be paid to ensure that neither the liquid nor the vapor
draw cylinders be overfilled.
REFUELLING CYLINDERS
The proper filling of propane cylinders is a subject so
important that it warrants special attention. Propane
cylinders should only be filled by qualified propane
dealers.
 Most important, propane cylinders should be filled no
more than 80% of their rated capacity. The other 20%,
which is about 4” (10 cm) from the top of the cylinder,
is called the vapor space or headspace. This vapor can
be compressed without causing the pressure relief
valve to open and vent gas to the area around the
cylinder. If there is no headspace to allow for fuel
expansion, the pressure relief valve will open, releasing
propane gas into the atmosphere. This is a very
dangerous and volatile situation as there is always the
possibility that enough of the vented gas could find its
way down to the floor and come in contact with a pilot
light from a furnace, hot water heater, or other source
of ignition.
Propane changes into a gas, is ‐44oF (‐42o C). Exposing
unprotected skin to propane gas or liquid could result
in frostbite injury.
All new cylinders should be vented and purged of air
per manufacturer’s instructions before use. Never bleed
propane cylinders indoors.
STORAGE CYLINDERS
When not in use, propane cylinders always should be
stored outside in an upright position in a secure,
tamperproof, steel mesh storage cabinet. This cabinet
may be located next to the building but with at least
five
feet (1.5 m) of space between the cabinet and the
nearest
building opening (door or window), also away from
heat and direct sunlight.
 Do not install the cabinet near a stairway or street
elevator as vented propane gas will seek a lower level
since it is heavier than air and could find its way into
the basement of the building. Do not store cylinders full
or empty inside a building or inside a vehicle. Although
it is unlikely that propane will vent from a stored
cylinder, if it should, the vapor could come in contact
with an ignition source such as a spark from a power
tool or other appliance and create a flash fire.
 Do not smoke or use a device with an open flame
when handling or transporting propane cylinders.
TRANSPORTING CYLINDERS
When transporting cylinders to a propane dealer or
to a job, make sure the cylinders are securely
fastened and standing in an upright position with
the service valve closed.
A cylinder rattling around in the back of a vehicle and
banging into other objects constitutes a hazard. Avoid
dropping or banging cylinders against sharp objects.
The propane cylinders are sturdily constructed
but a series of hard jolts could cause damage.
Please note that any cylinder that has been filled is
always
considered full, no matter how little propane gas
remains in it. This is because even when all liquid
has evaporated into vapor there is still some
propane gas vapor left in the cylinder. Because
this remaining fuel is flammable, an empty
cylinder should be treated with the same careful
procedures as one that is filled to the 80% level
with liquid propane. The only time that a cylinder
is considered empty is when it is new, before it
has been filled with propane.
When transporting a propane powered floor
machine, the propane cylinder may be strapped
onto the machine as long as the machine itself is
firmly secured in the vehicle.
 Of course, spare cylinders should always be
secured in an upright posi
Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022
3. HANDLING AND TRANSPORTATION
ADJUSTING THE HANDLE
The Handle on the frame is adjustable in height and allows the operator to work in a
correct and safe posture (fig. 3.1). To adjust the handle first you should release the pin
(fig. 3.3) then lift the locking plate (fig. 3.4) and then you can rotate and adjust the
handles. Choose the upright position to move easy the machine.
The machine has two built in weights. Each one could stay in upward Fig.3.5 or
downward position fig.3.6. You can lock and secure the weight in each of the two
positions by removing the pin and releasing the locking plate for the weights.
/Fig.3.7;Fig.3.8/.
Figure 3.5
Figure 3.6
Figure 3.7
Figure 3.8
Figure 3.1
Figure 3.2
Figure 3.3
Figure 3.4
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
12
LIFTING THE MACHINE FROM WORKING TO TOOL MOUNTING POSITION
Lock the weights in upward position. Put the handles of
the carriage as shown on (fig. 3.9). Ensure that the
water tank is empty before flipping the machine. Push
the handles and flip in position shown on fig. 3.9. If
necessary, help by placing your foot on the heel near the
gas bottle. Always keep both rear wheels locked
(Fig. 3.10). Unlock the wheels (Fig. 3.11) only
when you wish to move the machine
LIFTING
Lifting the machine by crane is possible by using the handles of the carriage (fig. 3.9). The design is rated only for the
weight of the machine. Do not lift any other loads on the machine. Always use hoisting equipment rated for 300 kg (660 lbs)
or greater.
STORAGE
Always store the LAVINA® GEB machine in a dry place. Never transport the
LAVINA® GEB machine unprotected; it may be damaged if transported unprotected exposed to rain or snow.
When the machine is in storage and the temperature may fall down to or below 32F (or 0o C) you
should empty the water from the system:
- Leave open internal and external valves to drain water
Figure 3.9
Figure 3.10
Figure 3.11
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
13
4. OPERATION
PRELIMINARY CONTROLS
Inspect the working area as explained in the safety instructions. Fill in the water tank for wet use or connect the vacuum
extractor and ensure that the vacuum hose is clear and it will follow the machine easily.
Make sure the bonnet air filter on top of the engine is clean. It should be cleaned hourly.
Check the engine oil level, screw the dipstick in to get reading. Make sure the tank is full (see also “Storage Propane tanks).
TANK and FUEL LINES - Check the tank and fuel lines for any sign of wear and tear, such as cracks or any corrosion. Screw the
brass fuel line fitting onto the tank service-valve (hand tight only). This connection MUST be secure because the service valve
has a safety valve inside it, which will only open if the brass fuel-line fitting is COMPLETELY seated into the service valve.
SA LPG CONTROLLER USER MANUAL
The SA LPG Controller is a high-performance, digital fuel control system featuring closed loop feedback,
fuel lock-off capability, emissions safety warnings with shutdown, and an LCD screen for user interface.
The system is highly responsive to changes in engine load, providing optimum the air-to-fuel ratio
regardless of operating conditions.
SYSTEM COMPONENTS
The following parts are included with the system
Electronics Module
Integrated Wire Harness
Fuel Control Valve
Fuel Control Housing
O2 Sensor
LPG Regulator with lock-off
*Individual items are available as replacement parts if necessary*
OVERVIEW OF FEATURES
Closed Loop Fuel Management System
The SA LPG Controller uses closed-loop feedback from the O2 sensor to control the amount of fuel introduced to
the engine via the Fuel Control Valve. This technology continuously monitors engine emissions and is capable of
making fuel corrections to compensate for varying engine loads and conditions.
BUILT-IN FUEL LOCKOFF CONTROLLER
The SA LPG Controller also controls the fuel lock off and only allows fuel to pass through if it detects the engine is
cranking. Once the SA LPG Controller is powered off from the equipment key switch, the SA LPG Controller closes
the fuel lock-off and shuts the engine down immediately.
EMISSIONS WARNINGS AND SHUTDOWN
If the SA LPG Controller detects engine emissions that are too lean or rich for a period of 5 minutes, it will shut the
engine down via the fuel lock off. The Red LED will blink and the LCD will display a message alerting the user of the
issue and will prompt some common fix suggestions.
BATTERY VOLTMETER
This feature allows for real-time display of the battery’s voltage, which also helps for troubleshooting any battery
or charging system issues that may arise.
ENGINE TACHOMETER
Displays the current engine speed (in RPM). This should be used to assess proper idle, WOT and engine speed for
the appropriate tooling.
JOB TIMER
The job timer feature works when the engine is running, and will stop running when the engine is stopped. The job
timer allows for easy timing of jobs or work areas to help determine speed. Resetting the job timer is password
protected.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
14
SERVICE ALERTS
The SA LPG Controller also provides equipment-specific service alerts for the following items:
Air Filter
Oil Change + Filter
Spark Plugs
Seal Replacements
Chain Inspections
Belt Inspections
Tooling Inspections
Each item has individual alerts at different hour intervals, and the SA LPG Controller will start alerting the user when
the hour interval is over. To reset a particular service alert, simply press the Enter button. The interval starts to blink.
Then press and hold the “+”and the Enter buttons for a couple of seconds. The interval should be reset.
MAIN MENU NAVIGATION AND USE
This section outlines how to navigate the menu and interact with certain features.
MAIN MENU
The Main Menu contains the following screens, which can be viewed by simply using the + and - buttons to scroll.
Please note: Upon startup, the first screen shown is always Operational Information (battery’s voltage and
tachometer).
- Operational Information (Default screen)
- Alarm Status
- Engine Hours
- Job Timer
- Service menu
- Diagnostic menu
- Machine number
- About
Operational Information - This is the default screen. It displays the battery’s voltage and tachometer - current
engine speed in rpm.
Alarm status – Alarm message indicates when a service interval is over. Then you should take particular action to
reset the alarm.
Engine Hours – Displays the total number of hours – idle mode and clutch engaged.
Job Timer - The job timer feature works when the engine is running, and will stop running when the engine is
stopped. This allows you to accurately time how long your engine runs for a particular job. Resetting the timer is
password protected.
Service menu – When you enter this menu, you have access to the service intervals of the machine. You can check
the time left before the service interval is over.
Diagnostic menu - When you enter this menu, you have access to the O2 sensor and step motor diagnostics.
Machine number – The machine serial number is entered here from the manufacturer.
About – This screen displays the manufacturer name. Hardware and software version too.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
15
LED ALERTS & RESETTING SERVICE INTERVALS
The SA LPG Controller will alert you when service is due. To reset the service interval see text above – Service Alerts.
SAFETY INFORMATION
Safety Information - Read all safety information before using this device to ensure safe and proper use.
Do not interact with the device while operating your equipment. Doing so may distract your attention and cause an
accident, or may be illegal depending on your region.
Avoid any direct contact with pressure washers, water sprayers or cleaning chemicals of any kind.
Do not drop or cause an impact to the device.
Do not bend or twist the device and/or the wire harness excessively.
Do not disassemble, modify or repair your device. This product contains no user serviceable parts.
FCC Part 15.21
Any changes or modifications to this device that are not expressly approved by the manufacturer may void the user’s
authority to operate the device.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
16
WATER FLOW CONTROL SYSTEM
The water system is designed to supply water directly on the tools. The
water supply is coming either from the tank or from external water
source:
- water supply from the tank:
Put the internal water valve into position „ON” (along the axis of the
machine) Figure 4.2 and close the external valve Figure 4.3, so the water
could flow from the tank through the internal valve over the tools.You
can adjust the water flow by putting the internal valve in an
intermediate position.
- external water supply:
Put the internal water valve into position „OFF” Figure 4.1 and open
the external valve Figure 4.4, so the water could flow through the
external valve over the tools.
You can adjust the water flow by putting the external valve
in an intermediate position.
ALWAYS USE CLEAN WATER TO PROTECT THE SYSTEM FROM DIRT.
Figure 4.1
Figure 4.2
Figure 4.3
Figure 4.4
Figure 4.5
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
17
ADJUSTING AND MOUNTING TOOLS
Lavina® 20GEB uses tool holder A63. With this new holder every one of our tools uses the “Quickchange” connection. To
change the tools you need first to unlock the butterfly (fig 4.6 in blue) by using the key we provide you (you can see it in the
pictures fig. 4.7) remove the security plate (fig 4.6 in red) then load the tools you want and insert the security plate again so
the tools cannot go backwards, rotate and lock the butterfly (as shown in fig.4.7). As you can see in fig. 4.6, for some of the
new tools you need to remove the security plate as they don’t need locking system at all but for the others always make sure
that the tools are securely locked.
In Lavina 20GEB the holder is initially mounted with 3 buffers.
Mount the tools only after ensuring that there is enough diamond bond material left. Be sure that the plates are always
clean before mounting.
WARNING: Always secure the Quick Change tools with the butterfly (Fig.4.6 in blue), lock with the tool holder key
(Fig.4.7) and make sure that the butterfly is securely locked and it holds the security plate not to fall off.
VACUUM CONNECTION
To connect a vacuum cleaner, the Lavina 20GEB is supplied with vacuum hose Cam Lock inlet C250 / vacuum hose diam. 2,5
in (63mm) (Fig.4.8-1). You can also dismount the Cam Lock adaptor (Fig.4.8-2) and connect a hose with outside diam. 2in
(Fig.4.9).
USE HORIZONTAL PROPANE TANK
The standard Lavina 20GEB is equipped with vertical propane tank with vapor draw. If necessary the machine can work
with horizontal tank but obligatory with vapor draw. Here is how to readjust the machine for horizontal propane tank:
Dismount the support that carries the strap holding the tank. Dismount the strap from the support. Dismount the rear
support of the tank. Remove half of the rubber insulator of the support. Place the strap in the middle of the tank support
and place again the half of the rubber insulator. This support together with the strap should be mounted on the upper
level.
Dismount the front tank support and mount it on the upper level.
Dismount the right support that has the tensioning key of the tank strap.
Mount the key on the carriage using the plate underneath and the available screws and nuts. Adjust the locking depending
on the diameter of the propane tank.
While working do not forget that you should use properly fitted tank with vapor draw, to avoid freeze regulator problems.
Figure 4.7
Figure 4.6
Figure 4.8
Figure 4.9
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
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CONTROL BOARD
THE CONTROL BOARD
1 Throttle Push forward to accelerate.
2 Start/Stop clutch Start will electronically activate the grinding plates to spin; stop will disconnect engine from grinding
heads
3 USB charger
4 Lights switch
5 Start/Stop Engine switch Turn key fully to the right (make contact) to ignite the engine. Fully to the left will arrest the
engine.
6 Electronics Module of digital fuel control system When running, it indicates the revolutions per minute of the motor.
When not running, it indicates the battery voltage, worked hours and some diagnostics data. The electronics module will blink
as a reminder for taking action when any of the service intervals is over. Check the conversion table to know the rpm of the
tools.
7 Emergency button used to stop the motor in case of emergency
8 Panel cover Under the cover is the 30 Amp fuse for the electrical system and the contacts separating the electrical system
between carriage and the main head.
9 Phone holder
10 Cover with cup holder
rpm engine
rpm tools
2000
610
2100
640
2200
670
2300
710
2400
740
2500
770
2600
800
2700
830
2800
860
2900
890
3000
920
3100
950
3200
980
3300
1010
3400
1040
3500
1070
3600
1090
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
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ELECTRONICS MODULE OF DIGITAL FUEL CONTROL SYSTEM
The block diagram only shows the flow using the "Plus" key on the keyboard. The "Minus" key reverses the direction of the flow.
If there is “L” in the corresponding button, then you have to hold it for a couple of seconds.
Superabrasive User Manual Original Language Lavina® 20GEB 4/2022
20
STARTING THE MACHINE
First, follow the directions in the chapter on Safety Devices and Safety Instructions. Check oil level. Open the service valve
on the propane tank about one and a half (counterclockwise) turns. Next, make sure the Start/Stop Clutch rocker (2) is in
stop position and check that the throttle (1) in the IDLE position. This creates the necessary vacuum to open the lock‐off
valve inside the regulator. Actuation of the throttle lever will keep the lock‐off valve from opening and the engine from
getting fuel so the engine will not start. Proper maintenance will insure easy starting. Engage starter (4) for a MAXIMUM of
5 to 6 seconds or until the engine fires. Serious starter damage will result if this is exceeded and the warranty may not
apply. Operate the engine at half throttle for approximately two minutes to properly warm engine. Then advance to full
throttle for best results. If working wet, add water to the floor surface. If working dry, instead switch on the vacuum unit.
Finally, hold the machine firmly and push the start of the Start/Stop clutch button (2).
OPERATING THE MACHINE
Guide the machine in straight lines across the floor, slightly overlapping the previously completed surface with each new line.
Work at a constant speed, allowing the tools time to work at a speed appropriate for the tools’ grit size. Avoid vibrations. Do
not stop the machine while tools are still running as they will mark the surface of the floor. When working wet, select the
destination of the water feed with the water tap (fig. 4.2) When working dry, check the floor surface periodically for dust
accumulation. Check regularly to see if you’re vacuum works properly.
STOPPING THE MACHINE
Stopping of the machine must be done gradually.
To begin, disengage the clutch by pushing the Stop clutch rocker (2), and return the throttle (1) to the IDLE
position. Wait 5-10 seconds. Turn the Start/Stop Engine switch (4) fully to the left in order to arrest the engine. Close
(clockwise) the service valve on the propane tank.
• In case of an emergency ONLY press the “Emergency Stop Button" (6).
When you are finished with the machine, store the propane tank outside the building, in a SECURE place away from
heat or direct sunlight.
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Superabrasive L20GEB Owner's manual

Brand
Superabrasive
Model
L20GEB
Type
Owner's manual
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